Synergistic effect of two bacterial strains promoting anaerobic digestion of rice straw to produce methane

文献类型： 外文期刊

第一作者： Wang, Jinghong

作者： Wang, Jinghong;Xu, Congfeng;Zhang, Wei;Hong, Yanhua;Wang, Weidong;Wang, Weidong;Wang, Jinghong;Xu, Congfeng;Shen, Guinan;Zhang, Shenglong;Wang, Weidong;Wang, Weiwei;Tang, Hongzhi;Zhang, Shenglong;Pan, Junting;Wang, Weidong

作者机构：

关键词： Bio-pretreatment; Anaerobic digestion; Sporocytophaga sp.; Bacillus clausii sp.; Synergy

期刊名称：ENVIRONMENTAL RESEARCH （ 影响因子：8.3； 五年影响因子：8.2 ）

ISSN： 0013-9351

年卷期： 2024 年 252 卷

页码：

收录情况： SCI

摘要： A large amount of agricultural waste causes global environmental pollution. Biogas production by microbial pretreatment is an important way to utilize agricultural waste resources. In this study, Sporocytophaga CG-1 (A, cellulolytic strain) was co-cultured with Bacillus clausii HP-1 (B, non-cellulolytic strain) to analyze the effect of pretreatment of rice straw on methanogenic capacity of anaerobic digestion (AD). The results showed that weight loss rate of filter paper of co-culture combination is 53.38%, which is 29.37% higher than that of A. The synergistic effect of B on A can promote its degradation of cellulose. The cumulative methane production rate of the co-culture combination was the highest (93.04 mL/g VS substrate), which was significantly higher than that of A, B and the control group (82.38, 67.28 and 67.70 mL/g VS substrate). Auxiliary bacteria can improve cellulose degradation rate by promoting secondary product metabolism. These results provide data support for the application of co-culture strategies in the field of anaerobic digestion practices.

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